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In the world, Willis (Willis , ויליס , 威利斯, among others...) is a common masculine given name. The forename Willis is habitual in the United States, where it is quite a rare male name, Bahamas, and Hong Kong, where it is quite a rare principally boy's, but scarcely female name. In absolute terms, it is commonest in the United States, Brazil, and Indonesia. More prevalently, Willis is the last name as well as the forename.
Willis is also a name for the fictitious and mythical characters: .